3M 7010320724 Floor Surfacing Disc 7in 120 Grit

Product Description

The 3M 7010320724 is a precut floor surfacing disc engineered for hardwood and wood composite floor finishing applications. Built with a sharp, fast-cutting synthetic mineral abrasive bonded to a tough, flexible paper or combination backing, this disc delivers consistent stock removal and a controlled finish across drum and disc floor sanders. At 7 inches in diameter with a 0.875-inch arbor hole and a 120-grit rating, it is suited for final finish passes and light material removal where surface quality matters. Flooring contractors and finish carpenters rely on this disc for production floor work.

This disc is used in residential and light commercial flooring projects where a fine, uniform scratch pattern is required before sealing or staining. The 120-grit designation places it in the finish-sanding stage of a typical floor surfacing sequence, following coarser cut-down passes. It is well suited for hardwood, engineered wood, and similar wood-composite floor surfaces. The precut format eliminates on-site trimming, reducing setup time during production work.

Key Features

• Precut 7 inches x 0.875 inches format — no field trimming required
• 120-grit synthetic mineral abrasive for fine finish-sanding passes
• Fast-cutting abrasive mineral promotes consistent material removal rates
• Flexible paper or combination backing conforms to floor surface variations
• Designed for extended disc life in production flooring environments

Compatibility

Designed as an OEM-style replacement disc for floor sanders that accept 7-inch round surfacing discs with a 0.875-inch center hole.

Installation Notes

Installation of floor surfacing discs is typically performed by licensed flooring contractors or experienced finish carpenters. Ensure the floor sander is fully powered off and unplugged before mounting or changing discs. Verify the disc seats flush against the sander pad with no gaps or buckling before operation. Always follow the flooring system manufacturer's recommended grit sequence and sand with the grain of the wood.

Technical Specifications

• Diameter: 7 inches
• Arbor Hole: 0.875 inches
• Grit: 120
• Abrasive Type: Synthetic mineral
• Backing: Flexible paper or combination
• Weight: 0.03 pounds
• UPC: 00051115040900

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010320724